Transport in Mammals

Worked examples (4)

• 1Arteries vs veins (6 marks)
• 2Formation of tissue fluid (5 marks)
• 3Capillary adaptations (4 marks)
• 4Advantages of double circulation (4 marks)

Model answers (5)

• ✓Model answer — 9700/22 May/Jun 2024 Q4(a) (adapted)
• ✓Model answer — 9700/42 May/Jun 2024 Q2(c) (adapted)
• ✓Model answer — 9700/12 Oct/Nov 2024 Q8 (adapted)
• ✓Model answer — 9700/12 May/Jun 2024 Q9 (adapted)
• ✓Model answer — Practice question — Paper 4 style

Worked examples (4)

• 1Shape of the oxygen dissociation curve (5 marks)
• 2Bohr shift (6 marks)
• 3Fetal vs adult haemoglobin (4 marks)
• 4Role of carbonic anhydrase in CO₂ transport (5 marks)

Model answers (5)

• ✓Model answer — 9700/22 May/Jun 2024 Q5(a) (adapted)
• ✓Model answer — 9700/42 May/Jun 2024 Q3(b) (adapted)
• ✓Model answer — 9700/22 Oct/Nov 2024 Q6 (adapted)
• ✓Model answer — 9700/12 May/Jun 2024 Q10 (adapted)
• ✓Model answer — Practice question — Paper 4 style

Worked examples (4)

• 1Events of the cardiac cycle (8 marks)
• 2Why the left ventricle wall is thicker (3 marks)
• 3Initiation and coordination of the heartbeat (6 marks)
• 4Events during atrial systole (4 marks)

Model answers (5)

• ✓Model answer — 9700/42 May/Jun 2024 Q4(b) (adapted)
• ✓Model answer — 9700/22 May/Jun 2024 Q6(a) (adapted)
• ✓Model answer — 9700/22 Oct/Nov 2024 Q7 (adapted)
• ✓Model answer — 9700/22 May/Jun 2024 Q6(c) (adapted)
• ✓Model answer — Practice question — Paper 4 style